Marathon County, WI

534 public highway bridges

Marathon County Bridge Snapshot

Marathon County, Wisconsin contains 534 public highway bridges in the FHWA National Bridge Inventory. Roughly 38% are rated “Good,” 37.3% “Fair,” 10.1% “Poor,” and 10.1% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in WI are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

534
Total Bridges
38%
Good
10.1%
Poor
10.1%
Structurally Deficient

Condition Distribution

Good
38% (203)
Fair
37.3% (199)
Poor
10.1% (54)
SD
10.1% (54)

All Bridges (534)

LRD STEWART AVE

Fair

Over: TRIB TO RIB RIVER

0.4M W JCT STH 52, Marathon, WI

Built 2000 Load: 38.9 t ADT: 10,347

CTH M

Fair

Over: BLACK CREEK

0.7M S JCT CTH F, Marathon, WI

Built 1972 Load: 40.2 t ADT: 244

STH 97

Fair

Over: BR HAMAN CREEK

1.3M N JCT CTH P, Marathon, WI

Built 1988 Load: 40.5 t ADT: 3,400

STH 107

Fair

Over: BIG RIB RIVER

0.5M N JCT CTH B, Marathon, WI

Built 1989 Load: 40.5 t ADT: 5,500

CTH U

Fair

Over: BR BLACK CREEK

1.3M E JCT CTH M, Marathon, WI

Built 2000 Load: 40.5 t ADT: 364

LRD LOOKOUT ROAD

Fair

Over: EAU CLAIRE RIVER

2.0M N JCT CTH N, Marathon, WI

Built 2009 Load: 40.5 t ADT: 116

IH USH 51-IH 39 NB

Fair

Over: USH BUS 51 & R.R.

AT INTERSECTION, Marathon, WI

Built 2012 Load: 41.5 t ADT: 39,600

LRD PLEASANT ROAD

Fair

Over: BULL JUNIOR CREEK

0.7M S JCT CTH X, Marathon, WI

Built 1995 Load: 42.1 t ADT: 60

CTH N (17TH AVE.)

Fair

Over: BIG RIB RIVER

0.6M N JCT CTH NN, Marathon, WI

Built 2004 Load: 42.1 t ADT: 14,200

CTH S

Fair

Over: SODA CREEK

1.1M N JCT CTH N, Marathon, WI

Built 1956 Load: 42.1 t ADT: 570

LRD BRIAR WOOD RD

Fair

Over: BURNS CREEK

0.8M E JCT CTH S, Marathon, WI

Built 1930 Load: 42.1 t ADT: 50

LRD NAUGERT DR

Fair

Over: LITTLE RIB RIVER

1.8M W JCT CTH O, Marathon, WI

Built 1953 Load: 42.1 t ADT: 36

STH 107

Fair

Over: FREEMAN CREEK

1.5M N JCT STH 153, Marathon, WI

Built 1959 Load: 43.7 t ADT: 1,600

LRD ELDERBERRY RD

Fair

Over: BIG EAU PLEINE RIVER

1.7M W JCT CTH F, Marathon, WI

Built 1990 Load: 43.7 t ADT: 177

LRD W BEAR LAKE RD

Fair

Over: EAU CLAIRE RIVER

0.7M E JCT CTH Y, Marathon, WI

Built 1995 Load: 43.7 t ADT: 32

STH 107

Fair

Over: BR W FK LITTLE RIB RIVER

4.0M N JCT CTH U TO E, Marathon, WI

Built 1923 Load: 43.7 t ADT: 2,200

LRD TOM HILL RD

Fair

Over: SCOTCH CREEK

0.8M E JCT CTH H, Marathon, WI

Built 1967 Load: 43.7 t ADT: 90

LRD WUERTZBURG RD

Fair

Over: BIG EAU PLEINE RIVER

1.1M W JCT CTH F, Marathon, WI

Built 1984 Load: 45.4 t ADT: 267

LRD PLEASANT VIEW

Fair

Over: LITTLE SANDY CREEK

0.1M S JCT CTH Z, Marathon, WI

Built 1927 Load: 45.7 t ADT: 66

CTH N

Fair

Over: BR HAMAN CREEK

0.5M W JCT STH 97, Marathon, WI

Built 1998 Load: 47.0 t ADT: 754

CTH P

Fair

Over: HAMANN CREEK

1.5M W JCT STH 97, Marathon, WI

Built 2003 Load: 47.0 t ADT: 326

CTH S

Fair

Over: SCOTCH CREEK

1.0M S JCT STH 29, Marathon, WI

Built 1928 Load: 48.6 t ADT: 570

CTH O

Fair

Over: FOUR MILE CREEK

2.1M S JCT CTH N, Marathon, WI

Built 1950 Load: 48.9 t ADT: 672

LRD GRASS CREEK LA

Fair

Over: GRASS CREEK

0.9M S JCT CTH F, Marathon, WI

Built 1958 Load: 51.8 t ADT: 163

CTH Z

Fair

Over: PLOVER RIVER

2.4M E JCT CTH Y, Marathon, WI

Built 1965 Load: 52.5 t ADT: 922

LRD SUNRISE RD

Fair

Over: PROSPECT CREEK

1.1M N JCT CTH G, Marathon, WI

Built 1927 Load: 56.7 t ADT: 51

LRD N. 20TH AVE

Fair

Over: COUNTY LINE CREEK

1.8M E JCT CTH K, Marathon, WI

Built 1978 Load: 63.2 t ADT: 50

CTH C

Good

Over: LITTLE EAU CLAIRE RIVER

2.3M E JCT CTH X, Marathon, WI

Built 1969 Load: 17.8 t ADT: 493

STH 29 WB

Good

Over: BIG EAU PLEINE RIVER

1.8M W JCT CTH F, Marathon, WI

Built 1982 Load: 22.7 t ADT: 5,900

STH 29 WB

Good

Over: WISCONSIN RIVER 29

2.5M W JCT CTH X, Marathon, WI

Built 1972 Load: 24.3 t ADT: 21,100

STH 153-MAIN ST

Good

Over: WISCONSIN RIVER 25

0.2M E JCT CTH B, Marathon, WI

Built 1963 Load: 24.3 t ADT: 13,100

CTH A

Good

Over: BR W FK LITTLE RIB RIVER

0.2M E JCT STH 107, Marathon, WI

Built 1985 Load: 24.3 t ADT: 1,030

LRD TOWNHALL RD

Good

Over: RANDALL CREEK

1.7M S JCT CTH A, Marathon, WI

Built 1952 Load: 24.3 t ADT: 47

LRD ASPEN RD

Good

Over: BR SCOTCH CREEK

0.4M N JCT CTH H, Marathon, WI

Built 1968 Load: 24.3 t ADT: 271

LRD PIONEER RD

Good

Over: JOHNSON CREEK

0.3M N JCT STH 153, Marathon, WI

Built 1975 Load: 24.3 t ADT: 90

LRD WOODLAND RD

Good

Over: BR W FK LITTLE RIB RIVER

0.7M W JCT CTH O, Marathon, WI

Built 2012 Load: 24.3 t ADT: 120

LRD COLONIAL RD

Good

Over: PRAHL CREEK

1.3M N JCT CTH N, Marathon, WI

Built 1983 Load: 25.9 t ADT: 582

LRD SHADY LANE RD

Good

Over: LITTLE TRAPPE RIVER

0.6M N JCT CTH W, Marathon, WI

Built 1982 Load: 25.9 t ADT: 422

LRD 4TH STREET

Good

Over: BR BIG RIB RIVER

0.5M E JCT CTH NN, Marathon, WI

Built 1985 Load: 25.9 t ADT: 182

LRD BOBRICH RD

Good

Over: PLOVER RIVER

0.5M W JCT CTH Y, Marathon, WI

Built 1985 Load: 25.9 t ADT: 70

IH 39NB

Good

Over: BULL JUNIOR CREEK

1.6M N JCT STH 153 TO E, Marathon, WI

Built 2009 Load: 25.9 t ADT: 29,800

LRD RAINBOW DR

Good

Over: BR LITTLE RIB RIVER

1.3M E JCT STH 107, Marathon, WI

Built 1940 Load: 25.9 t ADT: 42

CTH WW EVEREST AV

Good

Over: WISCONSIN RIVER

1.9M W JCT CTH W, Marathon, WI

Built 1967 Load: 27.5 t ADT: 3,900

LRD SANDY CREEK RD

Good

Over: JOHNSON CREEK

1.3M S JCT CTH C, Marathon, WI

Built 1984 Load: 27.5 t ADT: 55

LRD BIG RIB RIVER

Good

Over: MCGINNIS CREEK

0.4M W JCT CTH S, Marathon, WI

Built 1989 Load: 27.5 t ADT: 52

LRD TAYLOR-MARATHO

Good

Over: W BR BIG EAU PLEINE RIVE

2.0M E JCT STH 13, Marathon, WI

Built 1966 Load: 27.5 t ADT: 90

STH 29 EB

Good

Over: WISCONSIN RIVER 28

1.5M E JCT USH 51 TO S, Marathon, WI

Built 1972 Load: 29.2 t ADT: 28,400

IH USH 51-IH 39 NB

Good

Over: JOHNSON CREEK

1.6M N JCT CTH DB TO E, Marathon, WI

Built 1972 Load: 29.2 t ADT: 21,200

IH USH 51-IH 39 SB

Good

Over: PEPLIN CREEK

1.4M S JCT STH 34 TO S, Marathon, WI

Built 1972 Load: 29.2 t ADT: 22,800

IH USH 51-IH 39 NB

Good

Over: PEPLIN CREEK

0.4M N JCT CTH C, Marathon, WI

Built 1972 Load: 29.2 t ADT: 22,800

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial